Heat Wave Intensifies Across Eastern US
Millions of Americans sweltered under furnace-like temperatures on Thursday as a heat dome settled over the eastern United States, with dangerous conditions expected to persist through the Fourth of July holiday weekend. Pools were packed and power grids strained as cities including New York and Washington D.C. hit or surpassed 100°F (38°C).
The National Weather Service (NWS) warned that the heat index, which combines temperature and humidity, could peak as high as 115°F (46°C) in the mid-Atlantic region. The intense heat raised particular concern due to numerous planned outdoor events celebrating America’s 250th anniversary and a string of weekend World Cup matches.
Authorities Urge Precautions
Officials urged residents to stay indoors, especially during the hottest parts of the afternoon, check on neighbors, drink more water than usual, and seek air conditioning if they lack it at home. Many New Yorkers walked their dogs early to avoid unbearable temperatures and hot asphalt that could harm pets. However, delivery drivers and construction workers had little choice but to remain outside.
New York designated hundreds of public buildings as cooling centers, extended public swimming pool hours, dispatched volunteers to check on vulnerable residents, and opened cooling stations with misting fans and wet towels. Luis Rivera, who works in his family’s restaurant in lower Manhattan, took a quick dip at a packed public pool before work. “It’s hot, man,” he told AFP. “If you don’t need to come outside, stay home.”
Trey Parker, 27, brought his two young children to the pool after his apartment’s air conditioner failed. “Yesterday the AC got overwhelmed and stopped working adequately,” he told AFP. “So we had to come outside, get some air, get some Icees, get some water on our body.”
Power Grid Under Strain
New York’s electric authority and Mayor Zohran Mamdani stressed on social media that the “power grid is working overtime to keep us cool.” He asked residents to set air conditioners to 78°F (26°C), a request that drew backlash, with some urging the city to dim Times Square’s bright lights first. The power authority also asked residents to defer using dishwashers and laundry machines and avoid excessive AC use.
Similar pleas were made in Philadelphia, where officials urged residents to use ovens only when absolutely necessary to avoid overtaxing AC units.
Climate Change and the Heat Dome
More frequent, longer-lasting, and more intense heat waves are one of the clearest signs of climate change, with Europe also recently hard hit. Global average surface temperatures have risen roughly 2.5°F above pre-industrial averages due to human-caused climate change, primarily from burning fossil fuels. This week’s “heat dome” conditions occur when high-pressure systems trap warm air like a lid on a pot.
Impact on Holiday Festivities
The heat wave falls at a particularly busy time, with amped-up Fourth of July parties as the nation celebrates 250 years of independence. A rodeo on the National Mall was postponed, and a dress rehearsal for an annual holiday concert on the lawn of the U.S. Capitol was closed to the public due to the aggressive heat. Police said an announcement on the official show’s status would come tomorrow.
June Martin, 65, selling merchandise near the White House under the beating sun, carried cold water and Gatorade. “If you don’t have to be out here, don’t be out here,” she told AFP. “It’s excruciating.”
Those hoping for coastal relief faced disappointment: city authorities warned “multiple shark sightings” would cause intermittent closures at one of New York’s most popular beaches.
